Having a small problem with the player getting a "free hit" before they die

I built a 2D shooter and everything works as I want it to, The players shields go down to zero after being hit, and then the health gets taken. when the player gets down to zero health, they seem to have an extra hit, where they have 0 health and 0 shields, but still haven't died. Here is the portion of my script that deals with taking damage

//if it is a enemy entity

     else if (other.tag == "EnemyShip" || other.tag == "EnemyProjectile") 
     {

         //shakes the camera
         CameraShake.shake = true;

         //sets the upgraded weapon to be downgraded
         WeaponDowngrade();

         //runs a check to see if the player has shields
         if (curShields > 0)
         {
             //plays the power up sound effect
             AudioSource.PlayClipAtPoint(ShieldHit, transform.position);         
                                                                                 
             //takes away some of the player shields                             
             ModShields(-5);
             
         }
         //if there is no shields and the player still has health
         else if (curHealth >  0)
         {
             //plays the power up sound effect
             AudioSource.PlayClipAtPoint(ShipHitnoshield, transform.position);

             //take away some of the player health
             ModHealth(-1);
           
         }
         //if the player has no health left
         else if(curHealth == 0)
         {
             //plays the explosion audio
             AudioSource.PlayClipAtPoint(BlowUp, transform.position);

             //take away a life
             ModLives(-1);

             //reset the players health and shields
             ResetPlayer();                            
         }        
     } 

Is there something simple that I seem to be missing?